package io.github.dunwu.javacore.util.string;

public class StringBufferDemo09 {

	public static void main(String[] args) {
		String str1 = "Zhang Peng";
		for (int i = 0; i < 100; i++) {
			str1 += i; // 不断修改String的内存引用，性能低
		}
		System.out.println(str1);
	}

};
